Printer driver help needed

I’m working on a PostScript add-on driver for Win7+ that is an add-on for the built-in PS printer system.

I have both UI and PS render components and they seem to work right, except for one thing. In my print rendering driver, I change some of the variables in my private DevMode, and they never get updated by the UI driver. Are changes reported by the rendering driver ignored?

For those still reading and wondering “what is this clown doing?”, I am generating a UUID in the UI component, and then marking it as “used” once the file has been printed. Then the UI will see the “used” tag and generate a new UUID for use with the next print job. The requirements for this are:

* Each UUID can be used for only one print job.

* The UUID sent to the rendering DLL must be the same as the last one used in the UI DLL.

It can’t be that hard can it?

TIA,

Tom Friend
Illuminosi Inc.http:</http:>